1969_$100K_Treasury_Bill_(front)-Public-Domain-Wikipedia
JHerbstman – Own work, The Joe I. Herbstman Memorial Collection of American Finance
https://en.wikipedia.org/wiki/United_States_Treasury_security#Treasury_bill
1969_$100K_Treasury_Bill_(front)-Public-Domain-Wikipedia
JHerbstman – Own work, The Joe I. Herbstman Memorial Collection of American Finance
https://en.wikipedia.org/wiki/United_States_Treasury_security#Treasury_bill